单项选择题
I don't think that John will be able to win the gold me...
单项选择题I don't think that John will be able to win the gold medal at the Olympic Games, _______
How many_______known altogetherA.species of fishes areB...
单项选择题How many_______known altogether
Even when he is with others, he feels rather_______.A.a...
单项选择题Even when he is with others, he feels rather_______.